MyDayzWontWork

Everytime i get on arma 2 and dayz i spawn with a white glitchy screen only seeing a portion of the map and also my guy is invisible :(. Plz can anyone give me a solution to my problems?

I have a problem. Everytime i get into a dayz game my vision is white and glitchy.Also i cant see my player he is just invisible. this also happens on my arma 2 plz can any one help me? (Running non-steam)

Well as far as i know i installed the dayz mod correctly and when ever i actually get into a server to play i spawn and part of the screen i can see but most of it is like white and glitchy and i cant see what im doing this also happens when i play arma 2 without the mod. Can someone plz help me out? I know i cant be the only one.